code: def __repr__(self):
      return self.__str__()
  
imports: import json
  from logging import getLogger
  from typing import List, Optional
  from fate.arch.federation.api import PartyMeta
  from fate.arch.federation.message_queue import MessageQueueBasedFederation, Party
  from ._mq_channel import MQChannel
  from ._rabbit_manager import RabbitManager
label_desc: Use image node_id 3 for calling the MQ obj's underlying member method code with example usage: obj.__repr__() and returns: self